Question

Christian randomly selects students from his grade to rate a math test as easy moderate or difficult of the students he surveyed 13 said the test was easy 11 rated it as moderate and 3 found it difficult assuming that all students took the same test how many of the 162 total students in Christians grade would probably rate the test something other than easy?

Answer 1

Hello @Shnelby. Welcome to Question Cove. How are you today?

Answer 2

U still there

Answer 3

Okay, sure. I can try to help you. So, first thing we should do is figure out how many students in total participated in the survey. Can you state how many students in total participated in the survey?

Answer 4

All together I added an I got 189@hero

Answer 5

Well, actually, there are two sets of students in this case: Those that randomly participated in the survey and the total number of students in Christian's grade.

Answer 6

K

Answer 7

We only need the number of students that participated in the survey at the moment. Do you get what I am telling you here @Shnelby?

Answer 8

There are 162 that participated

Answer 9

I'll try to help you understand better. There are indeed 162 students in Christian's grade. But rather than ask every single student in his grade if the math test was easy, moderate, or difficult, he only asked a small subset of those students to rate the math test.

Answer 10

Do you get what I've explained so far @Shnelby?

Answer 11

Want it be 11

Answer 12

So of the students he surveyed:

13 said the test was easy
11 said the test was moderate
3 said the test was hard
__________________________ In other words:
27 students in total participated in Christian's survey

Answer 13

How does that sound to you so far @Shnelby?

Answer 14

Johnathan an Tim want to predict how many quarters are in a large jar containing 120 coins .Johnathan randomly selects a sample of 10 coins from the jar , while Tim randomly selects a sample of 30 coins.Then they count the number of quartes in each sample .Whose sample should more accurately predict the number of quarters in the jar?

Answer 15

@hero

Answer 16

What happened to the 1st question we were working on? BTW are you taking a test right now?

Answer 17

No but on the 1 question we was working on I gotta I get how u did it@hero

Answer 18

I don't understand what you mean by "you got it" because we were not even finished answering that question.

Answer 19

O I thought we wuz

Answer 20

You have to really pay attention and actually read what is being written. The only thing that we have done so far is we figured out how many students participated in the survey.

Answer 21

I thought we wiz done so I already answered itb

Answer 22

The next step would be to figure out how many of those 27 students rated the test as something other than easy.

Answer 23

Yes, and usually QC students would have ask "So is that the answer?" before assuming a written number is an answer to the question.

Answer 24

There's something about this site you should understand. We do not just give out answers. We expect you to participate in the problem-solving process. @Shnelby

Answer 25

Sorry I'm new to this

Answer 26

Another thing you should know is to only ask one question per post. Once we are done with a question, you must close the question in order to post the next question.

Answer 27

K

Answer 28

Do you know how to close the question?